Find the least number which when increased by 7 is divisible by 12 15 18 21
Answers
Answered by
16
frist find his factors ÷
his factors is 3,2,2,3,5,7
3×2×2×3×5×7=1260
secondly 1260 is divisible by 12 15 18 21
but,the first condition is [number +7]
so,we minus 7 from 1260=1253
according to the first condition +7
so,we take you number is 1253
so,we add 7 in 1253=1260
so,our number is 1260
and 1260 is divisible by 12 15 18 21
**1260 is ANS**
his factors is 3,2,2,3,5,7
3×2×2×3×5×7=1260
secondly 1260 is divisible by 12 15 18 21
but,the first condition is [number +7]
so,we minus 7 from 1260=1253
according to the first condition +7
so,we take you number is 1253
so,we add 7 in 1253=1260
so,our number is 1260
and 1260 is divisible by 12 15 18 21
**1260 is ANS**
Similar questions